Hydraulic Lifting Unit:
- is powered by a 4 kW motor,
- The lifting manhole cover can be shifted up and down as of maximum 130 cm,
- Mounted on (200 cm x 116 cm) area on the ground,
- Total height is H 210 cm when the cover is closed; Its height is H 340 cm when the cover is opened as of maximum level
- The cover is locked as it is air-leakproof,